Weather stripping



' June1o,'1941. L SYLVAN .2,244,739

WEATHER STRIPPING Filed March 20, 1940 Patented June 10, 1941 UNITED STATES i PATENT QFFICE WEATHER STRIPPING Joseph Sylvan, Detroit, Mich.

Application March 20, 1940, Serial No. 325,046

1 Claim.

This invention relates to improvements in weather strips of the type which fits in the recess or guide in the side jambs of a window frame in which the sash slides and one of the objects of the invention is to provide a self-adjusting Weather strip of this character which will fit in the usual sash recess and which may move with the sash when the latter swells or shrinks, and is so constructed that at the same time it will continually bind against one face of the sash and will operate to hold the sash by friction, thereby rendering it possible to dispense with the usual counterweights or balances for small sashes.

To the attainment of these ends and the accomplishment of other new and useful objects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and shown in the accompanying drawing illustrating this invention and in which Figure 1 is a front elevation of a window sash having a weather strip in accordance with the principles of this invention applied thereto.

Figure 2 is a detail sectional View taken on line 2-2, Figure 1, on an enlarged scale.

Figure 3 is a detail perspective view of the Weather strip.

The Weather strip is preferably constructed of a single piece of sheet material bent into shape and consists of a body I0, portions of which are bent at right angles to each other, as at Il and I2, to provide a weather strip of channel formation.

The end of the wall II is bent laterally and inwardly, as at I3, to form an overhanging flange spaced from the body I and the extremity of this flange I3 is preferably bent back upon itself, as at I4, to form a reinforcement.

Another portion of the body at the free edge of the wall l2 is bent back upon itself, as at I5, into the channel and against the wall I2. The extremity of the bent back portion I5 is deiiected, as at I6, to form a laterally projecting and upwardly extending spring tongue portion I6 which is located Within the channel. The portion of the tongue I6 adjacent the bent back portion I5 is preferably disposed in proximity to the base of the wall I2 and forms an angle I'I.

The tongue I6 from the angle Il extends upwardly and across the channel toward the opposite Wall II beneath the flange I3, but terminates short of the wall II and the free edge of the tongue I6 is preferably bent back upon itself,

as at I9, to form a reinforcing portion for the edge.

The weather strip thus formed is adapted to be inserted into a groove or channel 2l in the window jamb 22 and substantially fills the groove. If desired, and in order to hold the weather strip against displacement, suitable fastening devices such as screws or nails 23, may be employed which pass through openings 24 in the body portion Il! adjacent the Wall I2 and into a portion of the window frame.

In order to permit of the insertion of this fastening device, suitable apertures or openings 25 may be provided preferably in the angle Il at the junction of the tongue IS with the turned back portion I5 of the body of the Weather strip. These openings 25 are in alinement with the openings 24 and when the fastening devices 23 are in position they will serve as an -additional means for holding the tongue portion I6 of the weather strip in proper position.

The numeral 26 designates a window sash and is provided in one face thereof with a groove 2l running lengthwise of the sash and into this groove 2l the flange I3 and the turned back portion I4 on the wall II of the weather strip projects and moves.

This groove 2l is so located with respect to the edge 28 of the window sash that when the sash is in position the edge thereof will project into the channel and will place the tongue I6 under tension. This will .cause the free edge of the tongue I6 to press against the sash and co-operating with the groove 2l and the ange I 3 serves not only as a friction means for holding the sash 2E in position but the tongue will yield under expansion of the window sash and will remain in ,contact with the edge of the sash during contraction and expansion of the sash.

In addition to the spring tongue I6 the walls II and I2 of the channel are also resilient, and by reason thereof they will be held in contact with the side walls of the groove in which the weather strip is located.

While the preferred form of the invention is herein shown and described', it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the several parts within the scope of the claim without departing from the spirit of this invention.

What is -claimed as new is:

As an article of manufacture, a weather strip of integral construction formed of sheet metal and comprising a body, a portion of which is shaped to form a Wall extending along one of the lateral edges thereof, the free edge of said Wall being bent inwardly to form a flange extending along said Wall, overhanging and spaced from said body for a considerable distance, said flange being substantially parallel with the body, the opposite edge of said body beingV bent to form a Wall substantially parallel with the first said Wall at a substantial distance from the free edge of the said ange, a portion of the second said Wall being bent back upon itself and against the inner face thereof, the said bent back portion itself being deflected on a line adjacent the junction of the second said wall and the said body to form a spring tongue extending in an inclined direction from the said line, away from the said body toward the ange on the irst said Wall and projecting under said flange, said tongue terminating short of and spaced from the rst said Wall, the free edge of the tongue being normally l0 spaced from the said flange.

JOSEPH SYLVAN. 

